Head expansion Anchor bolts or bar composed of a Solid Body which is formed by two planes form longitudinal Conical and circular Cross Section,Where those flaps are united by a core of Solid Body whose interior is Hollow circular cross section and inside has a trapezoidal thread through which toTORNILLA Rod or Bolt.

摘要

Expansion Head Anchor bolts or bar composed of a Solid Body which is composed of two Conical shaped flaps of longitudinal and circular cross-sectionWhere those flaps are united by a strong Soul body whose interior is Hollow circular cross section and inside has a trapezoidal thread through which toTORNILLA Rod or Bolt.